Hyperfine-interaction parameters and magnetic phase antiferromagnet-ferromagnet transition in Ce(Fe1-x Si x )2

被引：5

作者：

Vershinin, A. V. ^{[1
]}

Naumov, S. P. ^{[1
]}

Serikov, V. V. ^{[1
]}

Kleinerman, N. M. ^{[1
]}

Mushnikov, N. V. ^{[1
]}

Rusakov, V. S. ^{[2
]}

机构：

[1] Russian Acad Sci, Mikheev Inst Met Phys, Ural Branch, Ekaterinburg 620990, Russia

[2] Lomonosov Moscow State Univ, Moscow 119991, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2016年 / 117卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

rare-earth intermetallics; magnetic phase transition; structural transition; Mossbauer effect; hyperfine parameters; DOPED CEFE2; TRANSFORMATION; FIELD;

D O I：

10.1134/S0031918X16120176

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Mossbauer spectroscopy study of Ce(Fe1-x Si (x) )(2) compounds with (x) = 0 and 0.07 was performed at different temperatures. Easy magnetization axis of the CeFe2 ferromagnet at 130 K was shown to be in the {110} plane and to deviate from the [001] axis by similar to 10A degrees. Upon cooling, the Ce(Fe0.93Si0.07)(2) compound undergoes the ferromagnet-antiferromagnet phase transition in a temperature range of 120-125 K, which is accompanied by the reduction of the lattice symmetry. The Debye temperature of the Ce(Fe0.93Si0.07)(2) compound was estimated using temperature dependences of the integral intensity of Mossbauer spectrum; it is T (D) ae 310 K. When analyzing the P(H) hyperfine field distributions P(H) derived from the Mossbauer spectra of Ce(Fe0.93Si0.07)(2), it was found that in the cubic structure of this compound in the ferromagnetic state there occur local rhomboherdal distortions typical of the antiferromagnetic state.

引用

页码：1185 / 1191

页数：7

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